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Finding the Fourth Proportional to 262,441,369.80, 393,662,054.70 and 185,850,880.20

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Solution

The fourth proportional to 262,441,369.80, 393,662,054.70 and 185,850,880.20 is: 278,776,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,441,369.80 : 393,662,054.70 = 185,850,880.20 : x
  2. Step 2: Convert to fraction form
    262,441,369.80/393,662,054.70 = 185,850,880.20/x
  3. Step 3: Cross multiply
    262,441,369.80x = 393,662,054.70 × 185,850,880.20
  4. Step 4: Simplify right side
    262,441,369.80x = 73,162,439,367,335,536
  5. Step 5: Solve for x
    x = 73,162,439,367,335,536/262,441,369.80
  6. Step 6: Final answer
    x = 278,776,320.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.